Glandless Pumps - THERMO-ECO-ENGINEERING úvod

Pump Management Systems Wilo-Control
Pump Control
Wilo-IF-Module Stratos for Twin-Head Pumps
Wilo-IF-Modul Stratos 1 x Ext. Min and 1 x PLR
Terminal diagram
Wilo-Stratos-D
Wilo-Stratos
Wilo-Stratos-Z
Connecting cable, min. 2 x 0,75 mm 2 , lock-protected
DP
0...10V
Ext.
Min
Wilo-IF module
Stratos Ext. Min
L N PE SSM
1~230 V
Master
Remote contact
– Ext. potential-fre contact (Input):
Closed contacts: Twin-head pump on
Open contactst: Twin-head pum "off"
– For remote actuation, remove bridge
DP
PLR
Wilo-IF module
Stratos PLR
Wilo-Stratos-D
Wilo-Stratos
Wilo-Stratos-Z
L N PE SSM
1~230 V
Slave
Plug-in Modules for twin-head pumps of the series Wilo-Stratos-D/
Stratos-ZD and Wilo-Stratos/Stratos-Z (2 pcs.).
For twin-head pump management a PLR module is required in addition
to the Ext. Min function module.
The functions of the Ext. Min module are applicable to the entire
twin-head pump.
>Additional functions
• Input for potential-free NC contact with Ext. Min function (setback
mode without autopilot)
- Contact closed: pump operating under auto control
- Contact open: pump runs at fixed minimum speed
• Control input 0 - 10 V for remote setpoint adjustment or remote
speed adjustment (cable shielded)
- Remote setpoint adjustment:
The setpoint value for integrated differential-pressure control is
determined for the pump via an analogue signal 0 - 10 V
(see “High-Efficiency Pumps Planning Guide”).
- Remote speed adjustment:
An external controller issues an actuating signal for remote speed
adjustment (DDC operation). This actuating signal acts on:
- the active pump in each case in main/standby operation
- Both pumps simultaneously (synchronously) in parallel operation
(synchronous)
(also see “High-Efficiency Pumps Planning Guide”).
The desired function must be activated at the pump.
• Twin-head pump interface DP for possible integration of twin-head
pump management of 1x twin-head or 2x single-head pumps,
optionally with the following functions:
- Main/standby operation for automatic fault-actuated switchover to
the standby pump and automatic pump duty cycling after 24 hrs.
running time
- Addition operation for efficiency-optimised On/Off control of the
peak-load pump and automatic fault-actuated switchover to the
standby pump
(Included in the scope of delivery of the IF-Modul Stratos PLR: 2-core
connecting cable, 670 mm long, a longer connecting cable to be provided
by customer: Min. 2 x 0.75 mm 2 )
>Delivery status
The terminals of the Ext. Min control input are bridged.
Heating, Air-conditioning,
Cooling
Potable water circulation
Solar thermal
Service/Accessories, Systems
Switchgears and Control Devices
Pump Management Systems
Wilo Catalogue A1 - Circulating pumps in glandless design
443